When doing what? Also why did you leave out that in the actual apples to apples comparison (the screenshot in the GitHub issue), IDEA literally is shown to have a worse latency versus vscode. Also, just going by pure graphical latency is... niche to say the least. What matters most is how fluid it is, how quick it actually processes stuff and how well it does all the required background IDE stuff without lagging or loading too slowly. Painting onto the display is just one part of the equation (and one that vscode still seems to beat IDEA on, even in a bug report about latency on... vscode)